Environmental risk transition is most likely to be characterized by?
a) changes in fertility rates and age/gender distribution in the population
b) changes in physical, biological, social. and psychosocial factors
c) changes in mortality rates, average life expectancy, and leading causes of death,
d) changes in levels of household risks like food, air and water and pollutants like the greenhouse gases
e) Changes in urbanization, carrying capacity, and biodiversity.